Wirelessly posted (Mozilla/5.0 (SymbianOS/9.2; U; Series60/3.1 NokiaE71-2/100.07.76; Profile/MIDP-2.0 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, like Gecko) Safari/413)
If I read the OP correctly, he/she is requesting miles for the stay in question. Maybe GP Customer Service did request the miles, and it is the airline that is remiss in crediting the miles.
Whenever I have had to call for a G bonus, etc, the GP points have posted almost immediately.